Evee and Workbench use Gpu when rendering but Cycles doesn't
As mentioned by @Eric Xue, the Ryzen 7 4800u is a CPU with only integrated graphics. Unless you have a dedicated graphics card, i.e nVidia Geforce RTX, or AMD Radeon, you cannot use the GPU render function because Blender does not render on integrated graphics.

Your GPU rendering selection is grayed out, signifying that you do not have a GPU or a  non-compatible GPU.

If you do have a compatible nVidia or AMD GPU, enable it in the Blender Preferences.